JPH0412920Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Industrial application field) This invention is a scaffolding that supports and sets a fixed base that supports scaffolding columns at a construction site by increasing the pressure receiving area. This invention relates to a support pedestal for a fixed base for columns.

(Prior art) Conventionally, in order to support scaffolding supports in an upright position at construction sites, first, a so-called corner of an appropriate size is prepared to prevent the scaffolding supports from sinking into the installation surface. , the scaffold support is supported via a fixed base set on top of this corner.

Conventionally, long wooden scaffolding boards have been used as they are, or scaffolding boards have been cut into short pieces to a certain size. Then, the fixing base is set and fixed by nailing onto the thus prepared wooden corner.

However, the use of such a wooden corner was easy to damage because it was made of wood, and it was difficult to withstand repeated use. Furthermore, if the fixed base separates from the corner after being set, sufficient supporting action cannot be obtained, so it is troublesome to nail the corner and the fixed base each time to integrate them.

Therefore, this idea was devised in view of the existing circumstances as described above, and allows the fixed base to be easily supported and fixed while increasing the pressure receiving area.
Moreover, it is an object of the present invention to provide a support pedestal for a fixed base for a scaffolding column that is easy to carry, does not require nailing, can be used repeatedly, and is easy to handle.

[Structure of the invention] (Means for solving the problem) In order to achieve the above-mentioned purpose, in this invention, a fixed base is rotatably fitted on a horizontal plane to a pedestal body that is installed on an installation surface. A recessed set portion is provided, and a rotation center portion with respect to the fixed base is provided on the upper surface of the set portion, and the corner portion of the fixed base is engaged by rotation of the fixed base on the upper surface of the set portion. It is characterized by forming an engaging protrusion and protruding a stopper that fits into a through hole drilled in the fixed base.

(Function) In the supporting pedestal of the fixed base for scaffolding columns according to this invention, the fixed base that supports the scaffolding column is set at a position where the predetermined scaffolding column is erected and supported.

That is, first, on the installation surface, the fixed base is placed within the recessed set portion of the pedestal main body of the invented support pedestal, aligned with the center of rotation thereof. When the fixed base is rotated in the horizontal direction on the upper surface of the set part, the center of rotation becomes the center of rotation, facilitating the rotational positioning operation. As the rotation work is performed, the corners of the fixed base are engaged with the engaging protrusions, and the through holes of the fixed base are fitted into the stoppers.

Next, the scaffolding support can be supported and erected on the fixed base.

At this time, the engaging protrusion firmly supports the fixed base by engaging the corner portion of the fixed base, and does not separate even under external force.

Further, the stopper fitted into the through hole firmly positions the fixed base, and after rotation, the positioned fixed base does not rotate in the opposite direction and maintains a predetermined position.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings.

Reference numeral 1 shown in the figure is the pedestal main body,
This pedestal main body 1 has a size sufficient to support a predetermined fixed base B that supports a scaffolding post P at a construction site under pressure, and has, for example, a substantially square shape with a side of about 240 mm in plan view. .

The rotation center portion 2 of the fixed base B is provided on the upper surface of the pedestal main body 1, for example, at approximately the center thereof.
For example, as shown in the figure, this rotation center part 2 is formed by stamping the center of the pedestal main body 1 to form a cylindrical part, and the lower end of the support cylinder at the fixed base B is attached to this cylindrical part. After fitting, the fixed base B can be rotated in the horizontal direction on the upper surface of the pedestal main body 1.

A recessed set portion 3 into which the fixed base B is rotatably fitted on a horizontal plane is provided on the upper surface of the pedestal main body 1. As shown in the figure, this set part 3 is formed by drawing a sheet material of an appropriate thickness to raise the periphery of the pedestal body 1 and make the central part depressed in a concave shape. Yes (see Figure 2). In addition, the formation of the raised portion by drawing in this way also serves as reinforcement for the pedestal body 1, and a thin material may be used as the material for forming the pedestal body 1, thereby saving the forming material. It is also possible to aim for Not only that, but it can be manufactured at a low cost by drawing and can be supplied in large quantities.

The set portion 3 shown in the figure is formed into a star shape when viewed from above, that is, a star shape in which each piece of a substantially square plane is depressed inward in the shape of a mountain. As long as the fixed base B can be horizontally rotated within the setting section 3, its shape can be arbitrarily selected.

Furthermore, an engaging protrusion 4 is formed on the upper surface of the pedestal body 1 to engage a corner portion of the fixed base B when the fixed base B rotates in the horizontal direction on the upper surface of the pedestal body 1. As shown in FIG. 2, this engaging protrusion 4 extends approximately L
By stamping out the shape of the letter, it is formed with the sides open.

In addition, as shown in the figure, two pieces in total are arranged at points symmetrical positions with respect to the rotation center of the base body 1, but the number is four so as to engage each corner of the fixed base B. can be selected arbitrarily. In this way, by arranging two pieces in point-symmetrical positions, it is easy to avoid the position of the engagement protrusion 4 and place the fixed base B on the upper surface of the pedestal main body 1, and it is also possible to prevent the fixed base B from being engaged by rotation. The work of engaging the mating protrusion 4 can be simplified.

Furthermore, a stopper 5 is provided on the upper surface of the pedestal main body 1 in a protruding manner to fit into a through hole drilled in the fixed base B. This stopper 5 is provided in a protruding manner in the pedestal main body 1, particularly in the set portion 3, at a position where the fixed base B rotates and engages with the engagement protrusion 4, and when the engagement with the engagement protrusion 4 is completed. This is to prevent the fixed base B from returning to rotation later.

Next, to explain an example of its use, a fixed base B that supports a predetermined scaffold support P may be set at a position where a predetermined scaffold support P is erected and supported. That is, first, in the support pedestal of this invented fixed base for supporting scaffolding columns that is installed on the installation surface, the fixed base B is placed in the set part 3 on the upper surface of the pedestal main body 1, aligned with the rotation center part 2, Rotate in the horizontal direction to engage the corners of the fixed base B with the engaging protrusions 4, and also align the through holes with the stoppers 5 and fit them together. By engaging in this manner, the setting is completed, and then the scaffolding support P is supported and erected on the fixed base B (see FIG. 3).

At that time, when rotating the fixed base B on the pedestal main body 1, a tool T such as a ratchet trench is used, for example, as shown in the figure, and the rod part of the tool T is inserted into the support cylinder of the fixed base B. It can be inserted into the L-shaped notch in the section and rotated by lever action.

[Effects of the invention] This invention is configured as described above, and therefore, the fixed base B can be installed on the installation surface in a one-touch manner extremely easily via the supporting pedestal of the fixed base for the scaffolding support of this invention. By forming a large pressure-receiving area, safety on construction scaffolding can be ensured.

That is, this invention provides a rotation center part 2 with the fixed base B on the upper surface of the pedestal main body 1 that is installed on the installation surface, and the rotation of the fixed base B on the upper surface of the pedestal main body 1 causes the corner of the fixed base B to be adjusted. This is because the fixing base B is provided with an engaging protrusion 4 that engages the corner, and it is only necessary to set the fixed base B on the upper surface of the pedestal main body 1 and rotate it on the upper surface, so it is extremely simple and easy to operate. can be carried out efficiently.

In addition, since the engaging protrusion 4 engages the corner portion of the fixed base B, it firmly supports the fixed base B and does not separate due to external force, thus eliminating the need for nailing as in the conventional case. Easy to handle.

Moreover, unlike conventional methods, there is no need to use or cut large scaffolding boards, and the fact that they are easy to carry and can be used repeatedly also contributes to improving work efficiency. ing.

In particular, the rotation center section 2 can easily temporarily set the rotation center of the fixed base B to be positioned within the set section 3, and can facilitate the rotation operation on a horizontal plane within the set section 3.

Furthermore, since the stopper 5 fits into the through hole of the fixed base B, the corners of the fixed base B are engaged with the engaging protrusions 4, and the fixed base is positioned after rotation. firmly support B,
This prevents it from being rotated in the opposite direction and removed, thereby maintaining the supported and fixed state.

In addition, the recessed set portion 3 prevents the pedestal main body 1 itself from deforming, further increasing its verticality,
This not only improves installation stability on the installation surface, but also allows for easy temporary positioning of the fixed base B within the set portion 3, resulting in improved work efficiency.

As explained above, according to this invention, the fixed base can be easily supported and fixed while increasing the pressure receiving area, and it is also easy to carry, does not require nailing, can be used repeatedly, and is economical. It has excellent effects such as ease of handling.

[Brief explanation of drawings]

The drawing shows one embodiment of this invention.
The figure is an exploded perspective view showing the arrangement during use, FIG. 2 is a sectional view, and FIG. 3 is a perspective view when the fixed base is set. P...Scaffolding support, B...Fixed base, T...Tool, 1...Pedestal body, 2...Rotation center, 3...
Set part, 4... Engagement protrusion, 5... Stopper.

Claims (1)

[Scope of utility model registration request] The pedestal body, which is installed on the installation surface, is provided with a recessed set part into which the fixed base is rotatably fitted on a horizontal surface, and the upper surface of this set part is provided with a center of rotation with the fixed base. An engaging protrusion is formed that engages a corner of the fixed base when the fixed base rotates on the upper surface, and a stopper is provided protrudingly to fit into a through hole drilled in the fixed base. Features a fixed base support pedestal for scaffolding supports.